• CanadaPlus@lemmy.sdf.org
    link
    fedilink
    arrow-up
    2
    ·
    edit-2
    13 hours ago

    Can a CNC not do that for just the mechanical parts?

    (I know way too much about bootstrapping semiconductor production at small scale, which seems to be viable but highly impractical)

    • LordGimp@lemm.ee
      link
      fedilink
      arrow-up
      1
      ·
      4 hours ago

      Sure, but it’s not as impressive (imo) when you also need a computer control system, a bunch of circuitry and electronics, and a whole mess of software to make it work in the end. A mill just needs enough spin and it runs exactly as intended.

      • CanadaPlus@lemmy.sdf.org
        link
        fedilink
        arrow-up
        1
        ·
        edit-2
        2 hours ago

        Oh yeah, I have a copy of the Gingery books and I love it.

        I haven’t seen Gingery into how much power you need exactly, or what blend of RPM vs. torque is ideal. What would be your guess, since it sounds like you might know?

        • LordGimp@lemm.ee
          link
          fedilink
          arrow-up
          1
          ·
          2 hours ago

          Torque is the real limiting factor. You can always gear up or down for whatever you’re working on, but at the end of the day you need enough torque to get the work done. And a proper milling machine needs A LOT of torque.